ML42633021
- 年齡
- 未確定
- 性別
- 未確定
影音備註
In flight flying away.
觀察細節
**Rare. I saw the bird while looking through the martins and swallows, when the birds was perched and almost dismissed it as a Gray-breasted without thinking. It was on wires with group of 12 Gray-breasted Martin, Mangrove Swallows and Southern Rough-winged Swallows. Size and shape similar to Gray-breasted Martin but with brown upperparts and a well-defined brown chest band, recalling huge Bank Swallow. I didn't think I had any identifiable photos, but realize I do have two perched, and two in flght. Unfortunately, the perched photos were taken when the bird as preening making it very difficult to see the pattern of the underparts; one can see the shape, overall coloration, and the underparts are visible on the distant flight photos. **Notes updated 15 December when photos uploaded.
技術資訊
- 型號
- Canon EOS-1D X
- 鏡頭
- EF500mm f/4L IS USM
- ISO
- 2000
- 焦距
- 500 mm
- 閃光
- Flash did not fire, auto
- 光圈值
- f/4.0
- 快門
- 1/8000 sec
- 次方
- 1052 pixels x 700 pixels
- 原始檔案大小
- 383.83 KB